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Java StreamTableEnvironment.toAppendStream方法代码示例

本文整理汇总了Java中org.apache.flink.table.api.java.StreamTableEnvironment.toAppendStream方法的典型用法代码示例。如果您正苦于以下问题：Java StreamTableEnvironment.toAppendStream方法的具体用法？Java StreamTableEnvironment.toAppendStream怎么用？Java StreamTableEnvironment.toAppendStream使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.apache.flink.table.api.java.StreamTableEnvironment的用法示例。


在下文中一共展示了StreamTableEnvironment.toAppendStream方法的8个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。

示例1: testSelect

import org.apache.flink.table.api.java.StreamTableEnvironment; //导入方法依赖的package包/类
@Test
public void testSelect() throws Exception {
	StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
	StreamTableEnvironment tableEnv = TableEnvironment.getTableEnvironment(env);
	StreamITCase.clear();

	DataStream<Tuple3<Integer, Long, String>> ds = StreamTestData.getSmall3TupleDataSet(env);
	Table in = tableEnv.fromDataStream(ds, "a,b,c");
	tableEnv.registerTable("MyTable", in);

	String sqlQuery = "SELECT * FROM MyTable";
	Table result = tableEnv.sql(sqlQuery);

	DataStream<Row> resultSet = tableEnv.toAppendStream(result, Row.class);
	resultSet.addSink(new StreamITCase.StringSink<Row>());
	env.execute();

	List<String> expected = new ArrayList<>();
	expected.add("1,1,Hi");
	expected.add("2,2,Hello");
	expected.add("3,2,Hello world");

	StreamITCase.compareWithList(expected);
}
开发者ID:axbaretto，项目名称:flink，代码行数:25，代码来源:SqlITCase.java

示例2: testFilter

import org.apache.flink.table.api.java.StreamTableEnvironment; //导入方法依赖的package包/类
@Test
public void testFilter() throws Exception {
	StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
	StreamTableEnvironment tableEnv = TableEnvironment.getTableEnvironment(env);
	StreamITCase.clear();

	DataStream<Tuple5<Integer, Long, Integer, String, Long>> ds = StreamTestData.get5TupleDataStream(env);
	tableEnv.registerDataStream("MyTable", ds, "a, b, c, d, e");

	String sqlQuery = "SELECT a, b, e FROM MyTable WHERE c < 4";
	Table result = tableEnv.sql(sqlQuery);

	DataStream<Row> resultSet = tableEnv.toAppendStream(result, Row.class);
	resultSet.addSink(new StreamITCase.StringSink<Row>());
	env.execute();

	List<String> expected = new ArrayList<>();
	expected.add("1,1,1");
	expected.add("2,2,2");
	expected.add("2,3,1");
	expected.add("3,4,2");

	StreamITCase.compareWithList(expected);
}
开发者ID:axbaretto，项目名称:flink，代码行数:25，代码来源:SqlITCase.java

示例3: testSelect

import org.apache.flink.table.api.java.StreamTableEnvironment; //导入方法依赖的package包/类
@Test
public void testSelect() throws Exception {
	StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
	StreamTableEnvironment tableEnv = TableEnvironment.getTableEnvironment(env);
	StreamITCase.clear();

	DataStream<Tuple3<Integer, Long, String>> ds = JavaStreamTestData.getSmall3TupleDataSet(env);
	Table in = tableEnv.fromDataStream(ds, "a,b,c");
	tableEnv.registerTable("MyTable", in);

	String sqlQuery = "SELECT * FROM MyTable";
	Table result = tableEnv.sqlQuery(sqlQuery);

	DataStream<Row> resultSet = tableEnv.toAppendStream(result, Row.class);
	resultSet.addSink(new StreamITCase.StringSink<Row>());
	env.execute();

	List<String> expected = new ArrayList<>();
	expected.add("1,1,Hi");
	expected.add("2,2,Hello");
	expected.add("3,2,Hello world");

	StreamITCase.compareWithList(expected);
}
开发者ID:axbaretto，项目名称:flink，代码行数:25，代码来源:JavaSqlITCase.java

示例4: testFilter

import org.apache.flink.table.api.java.StreamTableEnvironment; //导入方法依赖的package包/类
@Test
public void testFilter() throws Exception {
	StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
	StreamTableEnvironment tableEnv = TableEnvironment.getTableEnvironment(env);
	StreamITCase.clear();

	DataStream<Tuple5<Integer, Long, Integer, String, Long>> ds = JavaStreamTestData.get5TupleDataStream(env);
	tableEnv.registerDataStream("MyTable", ds, "a, b, c, d, e");

	String sqlQuery = "SELECT a, b, e FROM MyTable WHERE c < 4";
	Table result = tableEnv.sqlQuery(sqlQuery);

	DataStream<Row> resultSet = tableEnv.toAppendStream(result, Row.class);
	resultSet.addSink(new StreamITCase.StringSink<Row>());
	env.execute();

	List<String> expected = new ArrayList<>();
	expected.add("1,1,1");
	expected.add("2,2,2");
	expected.add("2,3,1");
	expected.add("3,4,2");

	StreamITCase.compareWithList(expected);
}
开发者ID:axbaretto，项目名称:flink，代码行数:25，代码来源:JavaSqlITCase.java

示例5: testRowRegisterRowWithNames

import org.apache.flink.table.api.java.StreamTableEnvironment; //导入方法依赖的package包/类
@Test
public void testRowRegisterRowWithNames() throws Exception {
	StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
	StreamTableEnvironment tableEnv = TableEnvironment.getTableEnvironment(env);
	StreamITCase.clear();

	List<Row> data = new ArrayList<>();
	data.add(Row.of(1, 1L, "Hi"));
	data.add(Row.of(2, 2L, "Hello"));
	data.add(Row.of(3, 2L, "Hello world"));

	TypeInformation<?>[] types = {
			BasicTypeInfo.INT_TYPE_INFO,
			BasicTypeInfo.LONG_TYPE_INFO,
			BasicTypeInfo.STRING_TYPE_INFO};
	String[] names = {"a", "b", "c"};

	RowTypeInfo typeInfo = new RowTypeInfo(types, names);

	DataStream<Row> ds = env.fromCollection(data).returns(typeInfo);

	Table in = tableEnv.fromDataStream(ds, "a,b,c");
	tableEnv.registerTable("MyTableRow", in);

	String sqlQuery = "SELECT a,c FROM MyTableRow";
	Table result = tableEnv.sql(sqlQuery);

	DataStream<Row> resultSet = tableEnv.toAppendStream(result, Row.class);
	resultSet.addSink(new StreamITCase.StringSink<Row>());
	env.execute();

	List<String> expected = new ArrayList<>();
	expected.add("1,Hi");
	expected.add("2,Hello");
	expected.add("3,Hello world");

	StreamITCase.compareWithList(expected);
}
开发者ID:axbaretto，项目名称:flink，代码行数:39，代码来源:SqlITCase.java

示例6: testUnion

import org.apache.flink.table.api.java.StreamTableEnvironment; //导入方法依赖的package包/类
@Test
public void testUnion() throws Exception {
	StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
	StreamTableEnvironment tableEnv = TableEnvironment.getTableEnvironment(env);
	StreamITCase.clear();

	DataStream<Tuple3<Integer, Long, String>> ds1 = StreamTestData.getSmall3TupleDataSet(env);
	Table t1 = tableEnv.fromDataStream(ds1, "a,b,c");
	tableEnv.registerTable("T1", t1);

	DataStream<Tuple5<Integer, Long, Integer, String, Long>> ds2 = StreamTestData.get5TupleDataStream(env);
	tableEnv.registerDataStream("T2", ds2, "a, b, d, c, e");

	String sqlQuery = "SELECT * FROM T1 " +
						"UNION ALL " +
						"(SELECT a, b, c FROM T2 WHERE a	< 3)";
	Table result = tableEnv.sql(sqlQuery);

	DataStream<Row> resultSet = tableEnv.toAppendStream(result, Row.class);
	resultSet.addSink(new StreamITCase.StringSink<Row>());
	env.execute();

	List<String> expected = new ArrayList<>();
	expected.add("1,1,Hi");
	expected.add("2,2,Hello");
	expected.add("3,2,Hello world");
	expected.add("1,1,Hallo");
	expected.add("2,2,Hallo Welt");
	expected.add("2,3,Hallo Welt wie");

	StreamITCase.compareWithList(expected);
}
开发者ID:axbaretto，项目名称:flink，代码行数:33，代码来源:SqlITCase.java

示例7: testRowRegisterRowWithNames

import org.apache.flink.table.api.java.StreamTableEnvironment; //导入方法依赖的package包/类
@Test
public void testRowRegisterRowWithNames() throws Exception {
	StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
	StreamTableEnvironment tableEnv = TableEnvironment.getTableEnvironment(env);
	StreamITCase.clear();

	List<Row> data = new ArrayList<>();
	data.add(Row.of(1, 1L, "Hi"));
	data.add(Row.of(2, 2L, "Hello"));
	data.add(Row.of(3, 2L, "Hello world"));

	TypeInformation<?>[] types = {
			BasicTypeInfo.INT_TYPE_INFO,
			BasicTypeInfo.LONG_TYPE_INFO,
			BasicTypeInfo.STRING_TYPE_INFO};
	String[] names = {"a", "b", "c"};

	RowTypeInfo typeInfo = new RowTypeInfo(types, names);

	DataStream<Row> ds = env.fromCollection(data).returns(typeInfo);

	Table in = tableEnv.fromDataStream(ds, "a,b,c");
	tableEnv.registerTable("MyTableRow", in);

	String sqlQuery = "SELECT a,c FROM MyTableRow";
	Table result = tableEnv.sqlQuery(sqlQuery);

	DataStream<Row> resultSet = tableEnv.toAppendStream(result, Row.class);
	resultSet.addSink(new StreamITCase.StringSink<Row>());
	env.execute();

	List<String> expected = new ArrayList<>();
	expected.add("1,Hi");
	expected.add("2,Hello");
	expected.add("3,Hello world");

	StreamITCase.compareWithList(expected);
}
开发者ID:axbaretto，项目名称:flink，代码行数:39，代码来源:JavaSqlITCase.java

示例8: testUnion

import org.apache.flink.table.api.java.StreamTableEnvironment; //导入方法依赖的package包/类
@Test
public void testUnion() throws Exception {
	StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
	StreamTableEnvironment tableEnv = TableEnvironment.getTableEnvironment(env);
	StreamITCase.clear();

	DataStream<Tuple3<Integer, Long, String>> ds1 = JavaStreamTestData.getSmall3TupleDataSet(env);
	Table t1 = tableEnv.fromDataStream(ds1, "a,b,c");
	tableEnv.registerTable("T1", t1);

	DataStream<Tuple5<Integer, Long, Integer, String, Long>> ds2 = JavaStreamTestData.get5TupleDataStream(env);
	tableEnv.registerDataStream("T2", ds2, "a, b, d, c, e");

	String sqlQuery = "SELECT * FROM T1 " +
						"UNION ALL " +
						"(SELECT a, b, c FROM T2 WHERE a	< 3)";
	Table result = tableEnv.sqlQuery(sqlQuery);

	DataStream<Row> resultSet = tableEnv.toAppendStream(result, Row.class);
	resultSet.addSink(new StreamITCase.StringSink<Row>());
	env.execute();

	List<String> expected = new ArrayList<>();
	expected.add("1,1,Hi");
	expected.add("2,2,Hello");
	expected.add("3,2,Hello world");
	expected.add("1,1,Hallo");
	expected.add("2,2,Hallo Welt");
	expected.add("2,3,Hallo Welt wie");

	StreamITCase.compareWithList(expected);
}
开发者ID:axbaretto，项目名称:flink，代码行数:33，代码来源:JavaSqlITCase.java


注：本文中的org.apache.flink.table.api.java.StreamTableEnvironment.toAppendStream方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。